[postgis-users] Get a feature geojson from postgis

[Max Demars]

Hi list,



I would like to get a geojson feature with properties from PostGIS. I have
found an example
<http://www.postgresonline.com/journal/archives/267-Creating-GeoJSON-Feature-Collections-with-JSON-and-PostGIS-functions.html>
to have a feature collection but I can't make it works for just a feature.

so far I modified the feature collection query but the output is not valid:

    "SELECT row_to_json(fc) \
                            FROM (SELECT 'Feature' As type \
                                 , ST_AsGeoJSON(%s)::json As geometry  \
                                 , row_to_json((id_relat,id)) As properties
\
                                FROM shapefile_feature WHERE id=%s)As fc;"
% (geometryField, feature.pk)

invalid output:

    {
       u'geometry':{
          u'type':u'MultiPolygon',
          u'coordinates':[
             [
                [
                   [
                      -309443.24253826,
                      388111.579584133
                   ],
                   [
                      -239422.232645415,
                      395845.012821243
                   ],
                   [
                      -136320.430677211,
                      389768.695489968
                   ]
                ]
             ]
          ]
       },
       u'type':u'Feature',
       u'properties':{
          u'f1':0,
          u'f2':489445
       }
    }

Anyone can help here?

-- 
Stack Overflow: http://stackoverflow.com/users/1914034/burton449
GIS Overflow: http://gis.stackexchange.com/users/14426/burton449
LastFm: http://www.lastfm.fr/user/burton449

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